Function call_tool

dash/mcp/primitives/tools/__init__.py:33–48

Route a tools/call request by tool name. The optional ``task`` parameter (per MCP Tasks protocol) is passed through to providers that support background callbacks.

(
    tool_name: str, arguments: dict[str, Any], task: dict | None = None
)

def call_tool(
    tool_name: str, arguments: dict[str, Any], task: dict | None = None
) -> CallToolResult | CreateTaskResult:
    """Route a tools/call request by tool name.

    The optional ``task`` parameter (per MCP Tasks protocol) is passed
    through to providers that support background callbacks.
    """
    for provider in _TOOL_PROVIDERS:
        if tool_name in provider.get_tool_names():
            return provider.call_tool(tool_name, arguments, task=task)
    raise ToolNotFoundError(
        f"Tool not found: {tool_name}."
        " The app's callbacks may have changed."
        " Please call tools/list to refresh your tool list."
    )